Question about KitchenAid KBMC140HSS Convection/Microwave Oven

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The digital display only show part of the display. i have the same problem with a dacor as well

Everything seems to be working except the digital display that is only partly visible

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We have a Dacor Microwave DMT2420S that everything works except the Touch Screen doesn't light up.


The display board is bad, it may be part of the control PCB or it may be separate. Some are back lit and some are lit internally.

Oct 21, 2013 | Dacor DMT2420S Preference 24" Microwave...

1 Answer

Dacor DCM24S microwave not working--not heating and table not rotating


The bottom door switch or its mount is bad.

See the service manual here and a help file on door switches here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Nov 23, 2012 | Dacor Microwave Ovens

1 Answer

Dacor DMT2420. Light and Display work fine, and you can type in time for cooking, but when you hit start, it does not make the buzz of it's normal sound, and the turntable doesn't spin.


On the DMT2420, that's a bad bottom door switch, or possibly that switch's mount.
The service manual is here and the parts list is here.
You can order Dacor parts by part number from the Pros here.

Jul 22, 2011 | Dacor DMT2420 1200 Watts Microwave Oven

1 Answer

My Dacor Microwave display is blank so I can see what I'm programming - however the microwave works fine. I think a bulb it out. I that possible and something I can fix? Model DMO 2420R. Thank...


This is a failure in the backlight circuit and/or a display segment failure.

Both are regularly repaired with our $39.95 service. Details are here.

Jul 05, 2011 | Dacor DMT2420SS Microwave Oven

1 Answer

Sharp Microwave diplay light not working


We regularly repair these display / control units nationwide by mail for $39.95 postpaid with a one year guarantee.

At our Web site, you can get details of our service, plus we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com
Microwave Oven Control Panel Repair Nationwide

Jul 07, 2010 | Sharp Microwave Ovens

1 Answer

Light and display work but not unit or turntable


On the DMT2420, that's a bad bottom door switch, or possibly that switch's mount.
The service manual is here and the parts list is here.
You can order Dacor parts by part number from the Pros here.

Jun 27, 2010 | Dacor DMT2420SS Microwave Oven

1 Answer

Sharp microwave 1200 watts keypad showing


Not a complete answer, but may help describe problem: Our R-510B should be the same except for color, and for several years it has intermittently messed up its display. The left side two segments on the units digit won't light up. So a digit 8, without the two vertical bars on the left, comes out as a letter E reversed left to right. Any digit that uses the two left segments (traditionally labelled segments E and F when talking about 7-segment displays) comes out wrong. Every thing else works fine. I can't tell if this is your problem.
This is almost surely a bad contact at the interface between the LCD display panel and the PC board: Typically there is a "squishy" conductive strip that connects them, and I expect grease has gotten in there. If so careful disassembly and cleaning with a mild solvent should fix it. Since we can live with it, and it usually fixes itself in a few weeks, I have not got around to taking it apart.
Bob Wilson

Oct 24, 2009 | Sharp R-510HW Microwave Oven

1 Answer

DACOR microwave, model DMT 2420S. Display is scrambled.


There are two options for this model:

- You can order our exclusive modified control unit (# CU440) with our proprietary upgrades for $115, then if you return your defective control unit in repairable, good cosmetic condition, we'll give you a core refund of $30. It comes with a one-year guarantee. For details, see: http://www.microwavedisplay.com/exchange.htm

- Or we can repair your existing control unit for $39.95 in about a week or so with a one year guarantee.


Feel free to contact me directly (and please remind me of your full model number from the tag on the unit) for more information & help.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Jun 26, 2009 | Dacor DMT2420 1200 Watts Microwave Oven

1 Answer

Dacor Touch Screen is flickering and doesn't respond to touch


You can get that repaired for $39.95 in most cases (details here) or order a control / display unit here.

Mar 31, 2009 | Dacor DMT2420SS Microwave Oven

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